<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>
</head>
<body>
    <div id="app">
        <form action="###">
            <!-- 下拉列表单选时,data中也是使用字符串保存 -->
            请选择你喜欢的城市
            <select name="city" v-model="city">
                <option value="北京">北京</option>
                <option value="上海">上海</option>
                <option value="广州">广州</option>
                <option value="深圳">深圳</option>
                <option value="曹县"></option>
            </select>

            <select name="food" mutiple v-model="food">
             <option value="螺蛳粉">螺蛳粉</option>
             <option value="臭豆腐">臭豆腐</option>
             <option value="热干面">热干面</option>
             <option value="胡辣汤">胡辣汤</option>

            </select>
        </form>
    </div>
    <script>
        Vue.config.Vue.config.productionTip = false;

        const vm =new Vue({
            el:"#app",
            data() {
                return {
                    city:"深圳",
                    food:[]
                }
            }
        })
    </script>
</body>
</html>